Ranunculus hispidus |
Ranunculus hispidus var. nitidus |
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bristly buttercup, hispid crowfoot, renoncule hispide |
bristly buttercup |
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Roots | never tuberous. |
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Stems | erect or decumbent, sometimes rooting nodally, hispid or strigose, base not bulbous. |
decumbent, sometimes rooting at nodes. |
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Basal leaf | blades ovate to deltate in outline, 3-foliolate or outer blades merely 3-parted, 2-13.4 × 2.4-16.8 cm, leaflets undivided to lobed or parted, ultimate segments narrowly elliptic or oblanceolate to circular, margins toothed, apex acuminate to rounded. |
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Flowers | receptacle hispid; sepals spreading or reflexed, 4-10 × 2-5 mm, hispid; petals 5, yellow, 8-16 × 3-9 mm. |
sepals reflexed 1 mm above base. |
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Heads of achenes | hemispheric to short-ovoid, 6-10 × 7-10 mm; achenes 2.2-5.2 × 2-3.8 mm, glabrous, margin forming narrow rib or broad wing 0.1-1.2 mm wide; beak persistent, lance-subulate, straight or somewhat curved, 0.8-2.6 mm. |
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Achene | margin 0.4-1.2 mm broad. |
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2n | = 32. |
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Ranunculus hispidus |
Ranunculus hispidus var. nitidus |
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Phenology | Flowering late winter–summer (Mar–Jul). | |||||||||
Habitat | Wet woods, swamps, ditches | |||||||||
Elevation | 0-200 m (0-700 ft) | |||||||||
Distribution |
AL; AR; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; NC; ND; NE; NH; NJ; NY; OH; OK; PA; RI; SC; SD; TN; TX; VA; VT; WI; WV; MB; NB; NF; NS; ON; PE; QC
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AL; AR; DC; FL; GA; IA; IL; IN; KS; KY; LA; MD; MI; MN; MO; MS; NC; NE; NJ; NY; OH; OK; PA; SC; SD; TN; TX; VA; WI; WV; ON |
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Discussion | Varieties 3 Until recently, the varieties of Ranunculus hispidus were usually treated as distinct species. Arguments for restoring species status to R. hispidus var. nitidus were given by G. L. Nesom (1993). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 3. | FNA vol. 3. | ||||||||
Parent taxa | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Ranunculus | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Ranunculus > Ranunculus hispidus | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | R. repens var. nitidus, R. carolinianus, R. palmatus, R. septentrionalis var. pterocarpus | |||||||||
Name authority | Michaux: Fl. Bor.-Amer. 1: 321. (1803) | (Chapman) T. Duncan: Univ. Calif. Publ. Bot. 77: 44. (1980) | ||||||||
Web links |